Window screen



April 12, 1927. 1,624,368

E. M. SCHWARZ WINDOW SCREEN Filed April 23. 1925 .237 my T018 Ema/(Mama WMMM Patented Apr. 12, 1927.

"UNITED STATES ERNEST M. *SGHWAR Z, OF PHILADELPHIA, PENNSYLVANIA.

WINDOW Application filed April 23,

My invention relates to new .and useful improvements in a window screen, and more particularly to that class of window screens wherein a metallic frame is used and metal strips are utilized in removably fastening the screen fabric on the frame.

The primary object of this invention is to so construct a unique metal frame and retaining' strips, the latter coacting with flanges or ribs of the frame to clamp a screen fabric on said frame. I

A further object of the invention is to produce an enlargement on one side of the frame flange or rib with which will coact a channel retaining strip having flanges of different widths and coacting with the enlargement, on the frame rib to clamp the screen fabric therebetween, the edges of which are bent about the rib enlargement by the retaining strips to securely fasten said screen fabric in place, it being understood that the retaining strips are secured to the frame by suitable fastening devices, such'as screws.

With these ends in view, this invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claims.

in order that those skilled in the art to which this invention appertains, may understand how to make and use the same, I will describe its construction in detail, referring by numerals to the accompanying drawing forming a part of this application, in which big. 1, is an elevation of a screen constructed in accordance with my invention.

big. 2, is an enlarged section at the line 22 of Fig. 1. 1

Fig. 3, is an enlarged fragmentary perspective view of one of the frame members and a coacting corner angle separated from each other to clearly illustratethe construction. 7

big. 4, is an enlarged fragmentary perspective view of one of the retaining strips.

in carrying out my invention as herein embodied, it) represents the side frame members and 11 the end frame members all of which are of identical construction and fashioned from sheet metal to produce a hollow body portion 12, preferably of rectangular shape in cross section and from the inner side of said body portion projects a rib 13 produced by two thicknesses of the metal in contact.

sonnnn.

1925. Serial No. 25,185;

One thickness of the metal is of greater length than the other and is bent over said other portion to form what I term the tongue 1% and in the region of this tongue the two thicknesses of metal forming the rib are bent back in reverse position to form of adjacent frame members and said angle irons may be secured to the frame members in any suitable manner, as by spot weldin Overthe opening formed by the frame is stretched a suitable screen fabric 17 so that its several edges overlie the enlargements on the ribs of all the frame members where said edges will be clamped by the retaining strips 18 when the latter are fastened by suitable fastening devices 19, such as screws, passing through holes 21 in the ribs and more particularly in the enlargements of said ribs and threaded into the holes 20 in the retaining strips 18. Each of the strips is formed from'a section of metallic channel and has'fianges 22 along the opposite edges.

screen fabric clamped between it and the rib enlargement will be bent-about said enlargement so as to securely hold the screen fabric in place.

From the fore-going it will be seen that when it is necessary to replace the screen fabric the several retaining strips may be removed by withch'awingthe fastening devices and a new piece of screen fabric placed on the frame and fastened by the replacement of said retaining strips.

Of course i do not wish to be limited to the exact details of construction as herein shown as these may be varied within the limits of the appended claims without departing from the spirit of my invention.

Having'thus fully described my invention, what I claim as new and useful is V 1. A window screen consisting of frame members produced from sheet metal and fashioned to provide a hollow body portion of rectangular shape in cross section, a rib holiw therein :unl QCKG'WS PQISHlltQ 't'lt()i1,'i' the hole: in the eniergwrenieuts tor threzulwl eu itlllttti' "with the retaining Strum Whereor the latter are reinovuhly held in place to elnnu) the screen tuilnie.

:2. in :1 window srreon, :1 frame member nit lHtLtl from a single strip of sheet metal out tuehionetl to prm'itle :1 hollow body pererehy nrtn'iilingzg two panels in Contact th each other, one oi the panels terminating? hort of the other, and the longer nunel heiue' hent over to provide :1 tongue, :uiel F flili til: limit hark upon itself to provide on enim-ggeuient with smitl tongue between two nortione oi the cooperating panels.

to twtin'iou t whereof. I have hereunto iti iiil i my signature.

ERNESI M. SCI-TWA R7,.

tun: u rih oi two thicknesses of said metal, "ll: 

